Skip to content

What is ‘ecclesiastical communion,’ which Pope Leo XIV granted to the new Chaldean patriarch?

Pope Leo XIV in St. Peter’s Square at the Vatican, at the general audience on March 25, 2026. | Credit: Daniel Ibáñez/EWTN News
Pope Leo XIV in St. Peter’s Square at the Vatican, at the general audience on March 25, 2026. | Credit: Daniel Ibáñez/EWTN News

Following the procedures for autonomous Eastern Catholic Churches, Pope Leo XIV granted the newly elected patriarch of the Chaldean Catholic Church, Mar Paul III Nona, ecclesiastical communion.

Pope Leo XIV granted ecclesiastical communion to the new patriarch of Baghdad of the Chaldeans, His Beatitude Mar Paul III Nona, who now serves as the head of this Eastern Catholic Church based in Iraq, which is in full communion with Rome.

What is the Chaldean Church?

The Chaldean Church is one of more than 20 Eastern Catholic Churches under the authority of the pope in Rome and possesses autonomy in accordance with Canon 27 of the Code of Canons of the Eastern Churches.

This allows it to manage its internal affairs in accordance with the laws it has established for itself. The Synod of Chaldean Bishops was the body that elected the new patriarch.

What is ecclesiastical communion?

The new patriarch, who succeeds Cardinal Louis Raphael Sako following his resignation, was elected on April 12 and received ecclesiastical communion on April 24, having requested it via a letter sent to Pope Leo, as established by Canon 76 § 2 of the Code of Canons of the Eastern Churches.

“With a heart filled with joy, I grant you ecclesiastica communio as an expression and bond of full communion with the Apostolic See in the common service of unity within the Church and the building up of the body of Christ,” the Holy Father wrote to the new Chaldean patriarch.

Ecclesiastical communion is the formal recognition of full communion with the Diocese of Rome, i.e. with the pope, granted to the one requesting it; in this case, the Chaldean patriarch.

This recognition enables the new patriarch to fully exercise his ministry as the head of the Chaldean Catholic Church, not only within Iraq but also among the diaspora throughout the world.

Once the patriarch, who is “primus inter pares” (“first among equals”) has received ecclesiastical communion, he may convene the synod of bishops of the Church over which he presides and also ordain bishops.

Pope Leo’s message to the new Chaldean patriarch

Pope Leo XIV offered his prayers for the new patriarch and his mission to proclaim the Gospel, “strengthening ecclesial communion within his own territory and in the territories of the diaspora, which is becoming increasingly numerous.”

The Holy Father highlighted that Mar Paul III Nona was elected “on the day when the Chaldean liturgy commemorates the encounter of the risen Christ with St. Thomas, from whom the living tradition of this Church originates.”

For this reason, he encouraged the Chaldeans to persevere as “true believers,” especially in the face of the “exceedingly arduous trials” that the faithful in Iraq and other territories often confront.

This story was first published by ACI Prensa, the Spanish-language sister service of EWTN News. It has been translated and adapted by EWTN News English.

Receive the most important news from EWTN Vatican via WhatsApp. It has become increasingly difficult to see Catholic news on social media. Subscribe to our free channel today

Share

Would you like to receive the latest updates on the Pope and the Vatican

Receive articles and updates from our EWTN Newsletter.

More news related to this article

Patrons and Restorers of the Vatican

EWTN Vatican brings you the third installment of our series on the Patrons of the Arts of the

Global Prayers for Pope Francis: Faithful Unite for His Recovery

Thousands gathered this week in St. Peter’s Square to join the cardinals resident in Rome in their Rosary for Pope Francis.

Vatican secretary of state warns of Europe’s low birth rates, ‘demographic winter’

Cardinal Parolin calls on Europe to rediscover its Christian roots and address its demographic challenges with solidarity and hope.
Pope Leo XIV claps with pilgrims during an audience for the Jubilee of Hope in St. Peter's Square on Oct. 25, 2025. | Credit: Vatican Media.

Pope Leo XIV gives advice for living with hope in a ‘troubled era’

Pope Leo XIV on Saturday said the key to living in a difficult time, when the Church’s teachings

Ecumenical Initiative Calls For Unity To Celebrate Easter Together

Here are the difficulties in changing the date of Easter to celebrate together with the Orthodox.

Meet the fathers behind the Church’s 4 most recent popes

The last four popes of the Catholic Church — John Paul II, Benedict XVI, Francis, and our new pope, Leo XIV — had hardworking fathers who instilled in each of their sons important traits and values.

LIVE
FROM THE VATICAN

Be present live on EWTNVatican.com